Yes, silicon oxide graphine (SOG) batteries are another lithium-based battery. And, no, they are not about to become the technology for electric vehicles today. But, they have a future.
Higher energy density, faster to charge and all the “we want it” updates it is something currently being made mainly for the military. In other words, something expensive today but their cost is likely to drop significantly in the future. Check out their story in this video and see what may be the future.